Original post by: bob ,
over head adjustments?
I recently had rack run on 12.7 det with 55k on inframe, motor was running good before overhead ( should of left it alone) now it feels like it sputters lightly in low rpms and dosent pull hills as strong. Any suggestions on what might of been adjusted wrong, shop where it was done said try running it awhile longer to see if it loosens up some. Not crazy about that solution but its not running that bad that it needs to be put back in shop right away